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Get Started Free →A self-contained WebGL2 hero: layered aurora light curtains warped over a night sky scattered with stars; move the cursor to sway the veil.
.claude/skills/nexu-io-webgl-aurora-veil/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-05 | ✓→✗ | ▼ Worse | 76% | 0% |
| case-06 | ✓→✗ | ▼ Worse | 36% | 0% |
| case-13 | ✓→✗ | ▼ Worse | 33% | 0% |
| case-16 | ✓→✗ | ▼ Worse | 48% | 0% |
| case-18 | ✓→✗ | ▼ Worse | 31% | 0% |
Produce a single self-contained index.html — A self-contained WebGL2 hero: layered aurora light curtains warped over a night sky scattered with stars; move the cursor to sway the veil.
OpenDesign detects getContext('webgl2') / heavy WebGL and renders this file in powered preview (a cross-origin-isolated iframe). The full GPU + scroll pipeline runs; no opaque-sandbox workarounds are needed.
webgl-aurora-veil/
├── SKILL.md ← you're reading this
├── example.html ← the complete, working artifact (READ FIRST)
└── (assets, if any)Keep any bundled LICENSE and on-screen credit intact. Replace imagery only with license-clean assets (original / AI, Lummi.ai, Unsplash/Pexels — never scraped imagery).
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | fail→fail | 51,870 | 60,073 | +16% | 1 | 1 | 0% | 8,232 | 8,452 | +3% | 0 | 0 | — |
case-02 | fail→fail | 44,351 | 40,862 | -8% | 1 | 1 | 0% | 8,228 | 8,448 | +3% | 0 | 0 | — |
case-03 | fail→fail | 41,859 | 54,364 | +30% | 1 | 1 | 0% | 8,230 | 8,450 | +3% | 0 | 0 | — |
case-04 | fail→fail | 41,549 | 75,333 | +81% | 1 | 1 | 0% | 8,213 | 8,433 | +3% | 0 | 0 | — |
case-05 | pass→fail | 29,251 | 52,231 | +79% | 1 | 1 | 0% | 4,782 | 8,433 | +76% | 0 | 0 | — |
case-06 | pass→fail | 39,846 | 44,036 | +11% | 1 | 1 | 0% | 6,194 | 8,433 | +36% | 0 | 0 | — |
case-07 | fail→fail | 50,927 | 41,267 | -19% | 1 | 1 | 0% | 8,231 | 8,451 | +3% | 0 | 0 | — |
case-08 | fail→fail | 24,142 | 39,913 | +65% | 1 | 1 | 0% | 4,905 | 8,450 | +72% | 0 | 0 | — |
case-09 | fail→fail | 39,046 | 39,269 | +1% | 1 | 1 | 0% | 8,226 | 8,446 | +3% | 0 | 0 | — |
case-10 | fail→fail | 38,189 | 44,175 | +16% | 1 | 1 | 0% | 8,224 | 8,444 | +3% | 0 | 0 | — |
case-11 | fail→fail | 42,065 | 41,783 | -1% | 1 | 1 | 0% | 8,224 | 8,444 | +3% | 0 | 0 | — |
case-12 | fail→fail | 40,202 | 39,454 | -2% | 1 | 1 | 0% | 8,229 | 8,449 | +3% | 0 | 0 | — |
case-13 | pass→fail | 53,078 | 42,554 | -20% | 1 | 1 | 0% | 6,343 | 8,437 | +33% | 0 | 0 | — |
case-14 | fail→fail | 52,145 | 39,795 | -24% | 1 | 1 | 0% | 8,220 | 8,440 | +3% | 0 | 0 | — |
case-15 | fail→fail | 54,451 | 53,265 | -2% | 1 | 1 | 0% | 8,230 | 8,450 | +3% | 0 | 0 | — |
case-16 | pass→fail | 28,374 | 41,695 | +47% | 1 | 1 | 0% | 5,721 | 8,446 | +48% | 0 | 0 | — |
case-17 | fail→fail | 37,846 | 39,225 | +4% | 1 | 1 | 0% | 8,225 | 8,445 | +3% | 0 | 0 | — |
case-18 | pass→fail | 59,498 | 52,581 | -12% | 1 | 1 | 0% | 6,462 | 8,438 | +31% | 0 | 0 | — |
case-19 | fail→fail | 73,758 | 42,904 | -42% | 1 | 1 | 0% | 8,225 | 8,445 | +3% | 0 | 0 | — |
case-20 | fail→fail | 40,058 | 52,316 | +31% | 1 | 1 | 0% | 8,215 | 8,435 | +3% | 0 | 0 | — |
case-21 | fail→fail | 37,933 | 43,215 | +14% | 1 | 1 | 0% | 8,223 | 8,443 | +3% | 0 | 0 | — |
case-22 | pass→fail | 38,525 | 70,602 | +83% | 1 | 1 | 0% | 7,725 | 8,445 | +9% | 0 | 0 | — |
case-23 | fail→fail | 90,326 | 43,531 | -52% | 1 | 1 | 0% | 8,222 | 8,442 | +3% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 23 cases were attempted. The headline lift of -100 percentage points is the difference between those two pass rates over the 23 comparable cases. 11 cases got worse with the skill loaded, and they are included in that figure.
Other measured skills in the registry, with their headline benchmark lift.